X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/081ac24295eb65573df5656879557bd51894dbec..6142980d07db9fb6c96c91adb143d04bb26911b2:/lib/classic_pagination/pagination.rb

diff --git a/lib/classic_pagination/pagination.rb b/lib/classic_pagination/pagination.rb
index ee0c5b7dc..dbeaf5a40 100644
--- a/lib/classic_pagination/pagination.rb
+++ b/lib/classic_pagination/pagination.rb
@@ -61,24 +61,24 @@ module ActionController
       DEFAULT_OPTIONS[:group] = nil
     else
       # A hash holding options for controllers using macro-style pagination
-      OPTIONS = {}
+      OPTIONS = {}.freeze
 
       # The default options for pagination
       DEFAULT_OPTIONS = {
         :class_name => nil,
         :singular_name => nil,
-        :per_page   => 10,
+        :per_page => 10,
         :conditions => nil,
-        :order_by   => nil,
-        :order      => nil,
-        :join       => nil,
-        :joins      => nil,
-        :count      => nil,
-        :include    => nil,
-        :select     => nil,
-        :group      => nil,
-        :parameter  => "page"
-      }
+        :order_by => nil,
+        :order => nil,
+        :join => nil,
+        :joins => nil,
+        :count => nil,
+        :include => nil,
+        :select => nil,
+        :group => nil,
+        :parameter => "page"
+      }.freeze
     end
 
     def self.included(base) #:nodoc:
@@ -93,9 +93,10 @@ module ActionController
       valid_options << :actions unless in_action
 
       unknown_option_keys = options.keys - valid_options
-      fail ActionController::ActionControllerError,
-           "Unknown options: #{unknown_option_keys.join(', ')}" unless
-              unknown_option_keys.empty?
+      unless unknown_option_keys.empty?
+        raise ActionController::ActionControllerError,
+              "Unknown options: #{unknown_option_keys.join(', ')}"
+      end
 
       options[:singular_name] ||= ActiveSupport::Inflector.singularize(collection_id.to_s)
       options[:class_name] ||= ActiveSupport::Inflector.camelize(options[:singular_name])
@@ -135,7 +136,7 @@ module ActionController
 
     # These methods become class methods on any controller
     module ClassMethods
-      # Creates a +before_filter+ which automatically paginates an Active
+      # Creates a +before_action+ which automatically paginates an Active
       # Record model for all actions in a controller (or certain actions if
       # specified with the <tt>:actions</tt> option).
       #
@@ -146,13 +147,15 @@ module ActionController
       def paginate(collection_id, options = {})
         Pagination.validate_options!(collection_id, options, false)
         module_eval do
-          before_filter :create_paginators_and_retrieve_collections
+          before_action :create_paginators_and_retrieve_collections
           OPTIONS[self] ||= {}
           OPTIONS[self][collection_id] = options
         end
       end
     end
 
+    protected
+
     def create_paginators_and_retrieve_collections #:nodoc:
       Pagination::OPTIONS[self.class].each do |collection_id, options|
         next if options[:actions] && !options[:actions].include?(action_name)
@@ -199,9 +202,7 @@ module ActionController
       collection.offset(paginator.current.offset).limit(options[:per_page])
     end
 
-    protected :create_paginators_and_retrieve_collections,
-              :count_collection_for_pagination,
-              :find_collection_for_pagination
+    private
 
     def paginator_and_collection_for(_collection_id, options) #:nodoc:
       klass = options[:class_name].constantize
@@ -213,8 +214,6 @@ module ActionController
       [paginator, collection]
     end
 
-    private :paginator_and_collection_for
-
     # A class representing a paginator for an Active Record collection.
     class Paginator
       include Enumerable
@@ -225,7 +224,7 @@ module ActionController
       # than or equal to zero). The page CGI parameter for links defaults to
       # "page" and can be overridden with +page_parameter+.
       def initialize(controller, item_count, items_per_page, current_page = 1)
-        fail ArgumentError, "must have at least one item per page" if
+        raise ArgumentError, "must have at least one item per page" if
           items_per_page <= 0
 
         @controller = controller
@@ -242,7 +241,7 @@ module ActionController
       # not belong to this Paginator, an ArgumentError is raised.
       def current_page=(page)
         if page.is_a? Page
-          fail ArgumentError, "Page/Paginator mismatch" unless
+          raise ArgumentError, "Page/Paginator mismatch" unless
             page.paginator == self
         end
         page = page.to_i
@@ -253,19 +252,19 @@ module ActionController
       def current_page
         @current_page ||= self[@current_page_number]
       end
-      alias_method :current, :current_page
+      alias current current_page
 
       # Returns a new Page representing the first page in this paginator.
       def first_page
         @first_page ||= self[1]
       end
-      alias_method :first, :first_page
+      alias first first_page
 
       # Returns a new Page representing the last page in this paginator.
       def last_page
         @last_page ||= self[page_count]
       end
-      alias_method :last, :last_page
+      alias last last_page
 
       # Returns the number of pages in this paginator.
       def page_count
@@ -273,11 +272,11 @@ module ActionController
                           1
                         else
                           q, r = @item_count.divmod(@items_per_page)
-                          r == 0 ? q : q + 1
+                          r.zero? ? q : q + 1
                         end
       end
 
-      alias_method :length, :page_count
+      alias length page_count
 
       # Returns true if this paginator contains the page of index +number+.
       def has_page_number?(number)
@@ -310,13 +309,14 @@ module ActionController
           @number = 1 unless @paginator.has_page_number? @number
         end
         attr_reader :paginator, :number
-        alias_method :to_i, :number
+        alias to_i number
 
         # Compares two Page objects and returns true when they represent the
         # same page (i.e., their paginators are the same and they have the
         # same page number).
         def ==(other)
           return false if other.nil?
+
           @paginator == other.paginator &&
             @number == other.number
         end
@@ -326,7 +326,8 @@ module ActionController
         # left-hand page comes after the right-hand page. Raises ArgumentError
         # if the pages do not belong to the same Paginator object.
         def <=>(other)
-          fail ArgumentError unless @paginator == other.paginator
+          raise ArgumentError unless @paginator == other.paginator
+
           @number <=> other.number
         end
 
@@ -397,7 +398,7 @@ module ActionController
         # Sets the window's padding (the number of pages on either side of the
         # window page).
         def padding=(padding)
-          @padding = padding < 0 ? 0 : padding
+          @padding = padding.negative? ? 0 : padding
           # Find the beginning and end pages of the window
           @first = if @paginator.has_page_number?(@page.number - @padding)
                      @paginator[@page.number - @padding]
@@ -416,7 +417,7 @@ module ActionController
         def pages
           (@first.number..@last.number).to_a.collect! { |n| @paginator[n] }
         end
-        alias_method :to_a, :pages
+        alias to_a pages
       end
     end
   end